Prismatic surveying compass and case – Thomas Jones

£245

Circa

1840

Country of manufacture

UK and Ireland

Categories: Scientific, Surveying Instruments & Mining

Description

A green card dial, lacquered brass surveying compass, signed on the dial, ‘Thomas Jones & Sons. 62 Charing Cross, London’. It has a diameter of 3.75 inches and the dial is centrally balanced with markings from 0 – 360. There is a folding prism sight with two sun shades and opposite the prism, a sighting arm with adjustable mirror. A small button to the base of the sighting arm locks the dial in place. There is a threaded lug to the underside for tripod mount. In very clean and well kept condition.

Contained in original leather case with buckle and strap.

Ask the Dealer

Item enquiry

To enquire about this item, complete the form bellow to send a message to the Dealer

Name *

Email *

Enter Email

Confirm Email *

Confirm Email

Message *

reCAPTCHA

Dealer information

I live in Lancashire (U.K.) and have been a dealer and collector of scientific and nautical instruments for a number of years. My stock has included some fine items from museums and colleges, which were surplus to their requirements. I occasionally purchase some interesting items from abroad, having established some reliable sources.